150 Mbps magnetic isolator with 3/3 channel split
The ADUM163N1BRZ-RL7 is a 6-channel, unidirectional digital isolator from Analog Devices using iCoupler magnetic coupling technology. It delivers a 150 Mbps data rate across a 3000 Vrms isolation barrier, with three channels on side 1 and three on side 2 — a balanced split that suits bidirectional data and control signal isolation in a single package.
The 75 kV/µs common-mode transient immunity (CMTI) is the spec that matters when this isolator sits between a microcontroller and a gate driver in a motor drive or switched-mode power supply. Fast switching edges from SiC or GaN FETs can couple several kV/µs across the barrier; if the isolator's CMTI is too low, data errors or latch-up follow. At 75 kV/µs minimum, this part handles the edge rates from most silicon IGBT and SiC MOSFET stages with margin. Propagation delay is 13 ns max in both directions, with a 4.5 ns pulse-width distortion ceiling — tight enough for SPI clock isolation up to the 150 Mbps line rate without skew-induced setup violations.
Package and footprint reality
Housed in a 16-SOIC package with 3.90 mm body width, the ADUM163N1BRZ-RL7 uses the same 1.27 mm pitch footprint as standard SOIC-16. The supplier device package is 16-SOIC, so no special pad geometry or via pattern beyond the usual SOIC land pattern is needed. The part does not include an integrated isolated DC-DC converter — isolated power must be supplied externally or from a separate isolated module. Rise and fall times are 2.5 ns typical, which keeps signal integrity clean on short PCB traces but may need series termination on runs longer than a few inches to avoid overshoot.
ADI lists the ADUM163N1BRZ-RL7 as Active with no NRND or last-time-buy flags. It is ROHS3 compliant.